Minerals for plant growth

Obtaining minerals

• Minerals are found in the soil.

• They are pumped into plant cells via active transport.

• This process is energy intense, so root hair cells have lots of mitochondria.

Nitrates

• Nitrates are a source of nitrogen.

• They are used to synthesize proteins, which are the building blocks of protein.

• Nitrates are used to make: enzymes, hormones, and DNA.

Nitrate deficiency

• Leaves begin to yellow and die.

• Growth of the plant is stunted.

Magnesium

• Magnesium ions are required to produce chlorophyll.

Magnesium deficiency

• Leaves begin to yellow.

• Growth of the plant will slow.

Potassium

• Potassium ions construct certain respiratory and photosynthetic enzymes.

• Without potassium, not enough ATP is produced.

Potassium deficiency

• Leaves begin to yellow, with dead spots.

Phosphates

• Phosphate ions are a good source of phosphorous.

• Phosphorous is required for the production of ATP and ADP. These compounds are important for metabolic processes.

• Phosphorous is used in the construction of nuclei acids.

• Used for root growth.

Phosphate deficiency

• Leaves turn purple.

• Wilted roots.